Unlike normal elections or referendums, in Participatory Budgeting (PB), voters are usually allowed to vote for multiples options, and within the budget constraint, multiple proposals can win the required funding. This is called "Multi-winner voting".
The voting process consists of two parts:
(1)
Voting input, or how people select projects on the ballots;

(2)
Voting aggregation, how the votes are counted and calculated based on how people vote. Shown in the following outcome table Lausanne city published, 12 of the 21 projects were selected and won the budget they proposed after the vote in 2022.

(Lausanne Participe: https://participer.lausanne.ch/processes/budget-participatif-2022/f/97/)
Ideally, the outcome of the vote reflects the preferences and concerns of citizens.
Today, you will be voting as a citizen in several Participatory Budgeting scenarios, rating multiple voting inputs and voting aggregation methods. Your final compensation will be determined by some of your choices. Did you know about Participatory Budgeting before today?